Lightweight Domestic Pig Behavior Detection Based on YOLOv8

The prevalence and magnitude of extensive domestic pig breeding in China are rising, and behavioral assessment of these pigs is essential for enhancing production efficiency. The existing behavior identification technique for domestic pigs is computationally intensive, making it challenging to use o...

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Main Authors: Kaining Zhang, Yu Zhang, Hongli Xu
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Applied Sciences
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Online Access:https://www.mdpi.com/2076-3417/15/11/6340
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author Kaining Zhang
Yu Zhang
Hongli Xu
author_facet Kaining Zhang
Yu Zhang
Hongli Xu
author_sort Kaining Zhang
collection DOAJ
description The prevalence and magnitude of extensive domestic pig breeding in China are rising, and behavioral assessment of these pigs is essential for enhancing production efficiency. The existing behavior identification technique for domestic pigs is computationally intensive, making it challenging to use on edge devices. This study introduces a lightweight method for identifying domestic pig behavior, YOLOv8-PigLite, derived from YOLOv8. Initially, a novel two-branch bottleneck module is developed within the C2f module, incorporating average pooling and deep convolution (DWConv) in one branch, while the other branch utilizes maximum pooling and DWConv to augment multi-scale feature representation. Subsequently, a Grouped Convolution module is integrated into the convolution framework, followed by incorporating the SE module to diminish the recognition error rate further. Ultimately, we implement BiFPN in the neck network to replace the original FPN, which streamlines the neck network and enhances its feature-processing capabilities. The test findings indicated that, in comparison to the original YOLOv8n model, the precision, recall, and mean average precision at 50% remain constant, while the parameters and floating-point computations are diminished by 59.80% and 39.50%, respectively. Additionally, the FPS has increased by 32.61%, and the model’s generalizability has been validated on public datasets.
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spelling doaj-art-c3e4023f0b76412e985f4a072a05424f2025-08-20T02:32:52ZengMDPI AGApplied Sciences2076-34172025-06-011511634010.3390/app15116340Lightweight Domestic Pig Behavior Detection Based on YOLOv8Kaining Zhang0Yu Zhang1Hongli Xu2School of Information Science and Engineering, Shandong Agricultural University, Tai’an 271018, ChinaSchool of Information Science and Engineering, Shandong Agricultural University, Tai’an 271018, ChinaSchool of Information Science and Engineering, Shandong Agricultural University, Tai’an 271018, ChinaThe prevalence and magnitude of extensive domestic pig breeding in China are rising, and behavioral assessment of these pigs is essential for enhancing production efficiency. The existing behavior identification technique for domestic pigs is computationally intensive, making it challenging to use on edge devices. This study introduces a lightweight method for identifying domestic pig behavior, YOLOv8-PigLite, derived from YOLOv8. Initially, a novel two-branch bottleneck module is developed within the C2f module, incorporating average pooling and deep convolution (DWConv) in one branch, while the other branch utilizes maximum pooling and DWConv to augment multi-scale feature representation. Subsequently, a Grouped Convolution module is integrated into the convolution framework, followed by incorporating the SE module to diminish the recognition error rate further. Ultimately, we implement BiFPN in the neck network to replace the original FPN, which streamlines the neck network and enhances its feature-processing capabilities. The test findings indicated that, in comparison to the original YOLOv8n model, the precision, recall, and mean average precision at 50% remain constant, while the parameters and floating-point computations are diminished by 59.80% and 39.50%, respectively. Additionally, the FPS has increased by 32.61%, and the model’s generalizability has been validated on public datasets.https://www.mdpi.com/2076-3417/15/11/6340domestic pigbehavioral recognitionYOLOv8nDWConvlightweighting
spellingShingle Kaining Zhang
Yu Zhang
Hongli Xu
Lightweight Domestic Pig Behavior Detection Based on YOLOv8
Applied Sciences
domestic pig
behavioral recognition
YOLOv8n
DWConv
lightweighting
title Lightweight Domestic Pig Behavior Detection Based on YOLOv8
title_full Lightweight Domestic Pig Behavior Detection Based on YOLOv8
title_fullStr Lightweight Domestic Pig Behavior Detection Based on YOLOv8
title_full_unstemmed Lightweight Domestic Pig Behavior Detection Based on YOLOv8
title_short Lightweight Domestic Pig Behavior Detection Based on YOLOv8
title_sort lightweight domestic pig behavior detection based on yolov8
topic domestic pig
behavioral recognition
YOLOv8n
DWConv
lightweighting
url https://www.mdpi.com/2076-3417/15/11/6340
work_keys_str_mv AT kainingzhang lightweightdomesticpigbehaviordetectionbasedonyolov8
AT yuzhang lightweightdomesticpigbehaviordetectionbasedonyolov8
AT honglixu lightweightdomesticpigbehaviordetectionbasedonyolov8